JPH043606Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a strainer for a chemical tank installed in an agricultural sprayer or the like, and specifically relates to a strainer with a simplified structure.

[Conventional technology]

FIG. 5 is a sectional view of a conventional strainer for a chemical tank installed in an agricultural sprayer or the like. The bucket-shaped strainer 10 includes a cylindrical body net 12 made of a net member, a bottom net 14 which is also made of a net member and closes the lower opening of the body net 12, and an annular body net 12 fixed to the upper part of the body net 12. It has an upper frame 16. The upper frame 16 has a flange 18 that extends outward in the radial direction.
and a cylindrical portion 20 that fits and is fixed to the inner periphery of the upper end of the body net 12. The flange 18 connects the strainer 10 to the edge of the drug tank inlet when the strainer 10 is attached to the drug tank inlet of the drug tank.
It serves as a hook.

6a to 6c sequentially show the processing steps for the upper frame 16 in FIG. 5. The band-shaped metal plate 22 is cut out (cutting), and an L-shaped member 24 having an L-shaped cross section is manufactured from the band-shaped metal plate 22 (L-bending). next,
The L-shaped member 24 is bent into an annular shape to produce an annular bent member 26 (bender processing). Finally, a joint end 28 existing in the circumferential direction of the annular bent member 26,
28, are joined by welding, and the surface is finished (welding and sanding).

[The problem that the idea aims to solve]

In the conventional strainer 10, the manufacturing of the upper frame 16 is thus complicated, which is a factor in increasing the cost of the strainer 10.

The idea is to simplify the structure of the upper edge of the strainer of the drug tank and reduce the cost of the strainer.

[Means to solve the problem]

According to this invention, in a strainer fitted at the entrance of a drug tank that stores a drug solution, the strainer is formed into a U-shape by a net member, and the open end is bent outward in multiple layers to support the strainer. One or more semicircular bent pieces that can protrude inward are fixed to this supporting part.

[Function] In the above structure, in this invention, the support portion at the open end of the strainer is formed by folding the edges of the net member in multiple layers, thereby simplifying the manufacturing process.

〔Example〕

An embodiment of this invention will be described with reference to FIGS. 1 to 4.

1 and 2 are a sectional view and a perspective view of the entire strainer 30 according to this invention. Body net 32
is made of a net member and has a cylindrical shape.
The lower end of the body net 32 is folded back inward, and the upper end of the body net 32 has multiple folds,
The supporting portion 36 is bent to form a plurality of layers (three layers in the embodiment) and bulges outward. The bottom net 38 is made of a net member, and has a bent portion 40 bent downward at the peripheral edge. The fold 34 and the folded portion 40 are fitted and fixed to each other, and the body net 32 and the bottom net 38 form a U-shaped structure.

FIG. 3 is a perspective view of the handle 42. handle 4
2 is machined from a band-shaped metal plate, bent at both ends to form hook parts 44, and twisted in the middle to form a semicircular grip part 46. One or more handles 42 are attached to the support 36.

In FIGS. 1 and 2, the handle 42 has a hook portion 44 hooked onto the upper edge of the support portion 36 and fixed by spot welding 48 so as to be disposed within the body net 32. Ru.

FIG. 4 shows how the strainer 30 is used. The chemical tank 50 is installed in agricultural spreaders such as carpet sprayers, boom sprayers, and speed sprayers, and stores chemicals. The drug tank inlet is provided on the upper wall of the drug tank 50, the strainer 30 is fitted into the drug tank inlet of the drug tank 50 from above, and the support portion 36 is placed against the edge of the drug tank inlet. The operator 52 pours the concentrated chemical into the chemical tank 50, and then pours water into the chemical tank 50 using a bucket 54 or the like. The water is
When passing through the strainer 30, foreign substances are strained out. When removing the strainer 30 from the drug tank inlet of the drug tank 50, the operator 52 grasps the handle 42 and pulls the strainer 30 upward.

[Effect of idea]

Thus, in this invention, the support portion at the open end of the strainer is formed by folding the edge of the net member multiple times. Therefore,
The open end portion can be easily manufactured without going through a long and complicated process unlike the conventional upper frame, and can contribute to reducing the cost of the strainer. Furthermore, by providing a semicircular bent piece on the support part, the worker can insert and hold the discharge hose of the water suction pump here and leave the area while water is being absorbed, thereby avoiding exposure to splashes of chemical solution. This has the effect of eliminating suction, which is beneficial for workers.

[Brief explanation of the drawing]

Figures 1 to 4 relate to an embodiment of this invention, Figures 1 and 2 are a cross-sectional view and perspective view of the entire strainer, Figure 3 is a perspective view of the handle, and Figure 4 is a strainer. Figures 5 and 6 relate to conventional strainers for drug tanks, Figure 5 is an overall sectional view of the strainer, and Figures 6 a to 6 c show the manufacturing process in the upper frame of Figure 5. FIG. 30...Strainer, 32...Body net, 36...
Support part, 38...Bottom net, 42...Handle (bending piece), 50...Drug tank.

Claims (1)

[Scope of utility model registration request] The strainer 30 fitted into the entrance of the drug tank 50 that stores the drug solution is formed into a U-shape by a net member, and the opening end thereof is bent outward in multiple folds to form a support portion 36. A strainer for a drug tank, in which one or more semicircular bent pieces 42 that can protrude inward are fixed to the support portion 36.